Up to date • Future-oriented • Zellentin

From the idea to the property right: We are at your side

With us your invention is in good hands.

Zellentin & Partner is a patent law firm established for more than 60 years with a technical focus in the field of chemistry and chemical engineering, combining tradition and progress convincingly and successfully. Its partners and the firm's team have the highest possible level of legal competence in all matters of intellectual property rights and related fields of law, such as the law on employees inventions or contract law. A special focus is the prosecution and enforcement of intellectual property rights in the successor states of the former Soviet Union.

We offer the best possible service with a high level of professional competence. Full transparency and cost control are a matter of course.

We personally take care of your intellectual property.

Your partners for patents, trademarks and designs.

Dr. Annekathrin Seifert

Our expertise

legal competence

  • patent law
  • utility model law
  • trademark law
  • design law
  • employee inventions law
  • contract law (licences, contracts of cooperation)
  • filing and enforcement of industrial property rights especially in the successor states of the former Soviet Union


technical competence:

  • polymer chemistry
  • formulations
  • organic synthesis
  • inorganic chemistry
  • organic electronics
  • batteries
  • cosmetics
  • detergents and aroma chemicals
  • crop protection
  • industrial organic chemistry
  • chemical engineering
  • cement and hydraulic binders

Office News

Strengthening our team

   |   news

"We are pleased to announce that were able to gain patent attorneys Dr. Annekathrin Seifert and Dr. Jens Wortmann as partners to strengthen our team."

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